CVE-2026-87755

Apache TomEE: Stateful session bean hijacking via predictable session identifiers

Published Nov 10, 2026 CVSS n/a EPSS < 1% KEV · Not listed
Description
Stateful session bean identifiers are not generated from a cryptographically secure random source. A remote attacker with access to the EJB remote endpoint who holds one valid identifier can derive those of other clients' sessions and invoke methods on their beans, exposing or modifying other users' session state. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.

Remediation

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History
Type Values Removed Values Added
Description Stateful session bean identifiers are not generated from a cryptographically secure random source. A remote attacker with access to the EJB remote endpoint who holds one valid identifier can derive those of other clients' sessions and invoke methods on their beans, exposing or modifying other users' session state. Users are recommended to upgrade to version 10.3.0 or 11.0.0-M2, which fix the issue.
Title Apache TomEE: Stateful session bean hijacking via predictable session identifiers
Weaknesses CWE-340
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Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 10, 2026, 2:56 PM
Reserved
Sep 9, 2026, 7:01 AM
Status
Awaiting Analysis
Published
Nov 10, 2026, 3:17 PM
Modified
Nov 12, 2026, 5:06 PM